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Thermalright Peerless Assassin 120 Digital White CPU Air Cooler, Digital Screen Top Cover,6 Heatpipes Computer CPU Cooler, for AM4/AM5,Intel LGA1700/1851/1150/1151/1200, PC Cooler-White
Thermalright

Thermalright Peerless Assassin 120 Digital White CPU Air Cooler, Digital Screen Top Cover,6 Heatpipes Computer CPU Cooler, for AM4/AM5,Intel LGA1700/1851/1150/1151/1200, PC Cooler-White

4.6(196 reviews, all variants)
Amazon's Choicebudget$0-$49
#21 in Computer CPU Cooling Fans
fan size
162mm
material
Copper, Metal, Plastic
connector
4-Pin
compatible
Desktop
cooling method
Air

Want the best price and purchase timing?

Our AI advisor analyzes real-time pricing across all channels to find you the best deal.

AI Verdict

A 162mm dual-tower air cooler with 6 copper heat pipes, dual 1850RPM fans, and a digital screen for CPU/GPU monitoring.

Strong Fit

This cooler is a strong fit for users seeking high-performance air cooling with a visual flair. Its 6 heat pipes and dual 1850RPM fans deliver substantial heat dissipation, while the digital screen provides real-time CPU/GPU monitoring. The 162mm height fits most ATX cases.

If you need even more cooling capacity for extreme overclocking, look for coolers with larger heatsinks or more heat pipes, or consider an AIO liquid cooler.

Regret Score™

Low Risk

Lower is better — measures purchase-regret risk from real buyer complaints, review credibility, and product maturity

24/100
vs. 1,285 Power & Cooling we've analyzedSafer than 54%
Hidden Defects
13/35

Issues discovered after purchase

Achilles' Heel
0/25

Critically weak dimension

Expectation Gap
7/20

Amazon rating vs actual quality

Fit Risk
4/20

Chance this product isn't for you

BuyChoice Score
3.9

Pros

  • Digital screen displays CPU/GPU temperature and occupancy, with customizable text color via TRCC software.
  • Features 6x6mm pure copper heat pipes with AGHP 5.0 technology for efficient heat transfer.
  • Dual 120mm fans operate at 1850RPM, providing 88.89CFM airflow and 2.21mm H2O wind pressure.
  • Maintains CPU temperatures significantly lower than stock coolers, with reported drops from 90C to 40C at idle.
  • Includes thermal paste for immediate installation.

Cons

  • Large fan size (120x120x28mm) can interfere with tall RAM modules, potentially requiring one fan to be raised.
  • AMD platform installation requires the motherboard's original backplate, which is not included.
  • Some users report the stock fans are not entirely silent, suggesting alternatives for quieter operation.
  • TRCC software for the digital screen requires a 9PIN USB interface on the motherboard for power and data.

Dimension Scores

Efficiency & Output9/10

Features 6x6mm pure copper heat pipes, AGHP 5.0 technology, and dual 1850RPM fans with 88.89CFM airflow, capable of dropping CPU idle temps from 90C to 40C.

Noise Level7/10

Operates at ≤25.6DB(A), which is relatively quiet for its performance, though some users suggest alternative fans for absolute silence.

Build Quality8/10

Constructed with copper, metal, and plastic, featuring S-FDB bearings for long fan life and a precision reflow soldering micro-carved copper bottom.

Cable Management5/10

Requires a 9PIN USB interface for the digital screen, adding an extra cable to manage inside the case beyond the standard 4-pin fan connectors.

Best For

  • Users needing effective air cooling for AM4/AM5 or Intel LGA1700/1851 CPUs.
  • PC builders wanting to monitor CPU/GPU stats directly on the cooler.
  • Systems housed in mainstream ATX chassis with 162mm cooler clearance.

Not Recommended For

  • Small Form Factor (SFF) PC builds due to its 162mm height.
  • Users with tall RAM modules who prioritize aesthetics and don't want fan adjustments.
  • Users without an available 9PIN USB header on their motherboard for the digital screen.

Watch Out For

  • The 162mm height means it won't fit in many compact cases, so check your case's CPU cooler clearance before buying.
  • Installing on AMD platforms requires reusing the motherboard's original backplate, which isn't provided in the box.
  • The large 120mm fans might block RGB RAM modules, forcing you to adjust one fan higher, impacting aesthetics or airflow.
  • The TRCC software for the digital screen needs a 9PIN USB header, so make sure your motherboard has one free.

Full Specifications

UPC753873527517
ASINB0DRNWXZ8C
BrandThermalright
MaterialCopper, Metal, Plastic
Item Weight3.47 pounds
Noise Level25.6 Decibels
ManufacturerThermalright
Cooling MethodAir
Number of Items1
Air Flow Capacity88.89 Cubic Feet Per Minute
Compatible DevicesDesktop
Product Dimensions5.43 x 4.92 x 6.38 inches
Power Connector Type4-Pin
Maximum Rotational Speed1850 RPM

What Buyers Say

Users frequently highlight this cooler's ability to drastically reduce CPU temperatures, often noting drops from high idle temperatures to around 40C. The digital screen, which displays CPU and GPU stats, is a recurring point of appreciation for its functionality and customizable aesthetics. However, the cooler's substantial size often leads to concerns about RAM clearance, with some users needing to adjust fan placement. The requirement for the motherboard's original AMD backplate for installation is also a specific detail mentioned.

“Dude, this thing dropped my Ryzen 7's temps like crazy, but I had to move the front fan up a bit 'cause my fancy RGB RAM was in the way. Still, that little screen showing my temps is sick!”

Common Praise

  • Significantly reduces CPU temperatures, with reported drops from 90C to 40C at idle.
  • Digital screen on the top cover provides real-time CPU and GPU temperature and occupancy data.
  • Includes thermal paste, making it ready for immediate installation.
  • Dual 120mm fans move 88.89CFM of air at 1850RPM.
  • Compatible with a wide range of Intel and AMD sockets, including AM4/AM5 and LGA1700/1851.

Common Complaints

  • Large fan size can block RGB RAM modules, requiring the fan to be mounted higher.
  • AMD installations require the original motherboard backplate, which isn't supplied.
  • Some users find the stock fans aren't completely silent and consider replacing them for quieter operation.
  • The digital screen needs a dedicated 9PIN USB header on the motherboard.

Ownership Tips

  • The digital screen's customizable colors are a nice touch for matching build aesthetics.
  • The cooler's weight feels substantial, indicating a robust heatsink.
  • The TRCC software is straightforward for monitoring and screen customization.
  • Even with the fan adjusted for RAM clearance, cooling performance remains strong.
  • Dust accumulation on the large heatsink fins might require periodic cleaning.

Frequently Asked Questions

What CPU sockets does this cooler support?

It supports AMD AM4/AM5 and Intel LGA1851/1700/1150/1151/1155/1156/1200 sockets.

How tall is this cooler? Will it fit in my PC case?

The cooler has an overall height of 162mm. You should check your PC case's maximum CPU cooler clearance to ensure compatibility.

Does it come with thermal paste?

Yes, it includes a tube of thermal paste in the box.

What does the digital screen display?

The digital screen on the top cover can monitor CPU and GPU temperature and occupancy parameters, and you can adjust the text color using the TRCC software.

Is installation difficult, especially for AMD CPUs?

Installation is generally straightforward, but for AMD platforms, you'll need to use your motherboard's original backplate, as one is not included with the cooler.

Buying Guide

When picking a CPU air cooler, you're essentially looking for something that can pull heat away from your CPU efficiently and quietly. The bigger the heatsink and the more heat pipes it has, generally the better it cools. Fan speed and airflow are also key, but a balance with noise level is important. Don't forget to check its height against your PC case's clearance, or you'll be stuck.

Heat Pipes

These are tiny tubes filled with a liquid that vaporizes at the CPU's heat, travels up, condenses, and then flows back down. More heat pipes (like the 6x6mm here) mean more pathways for heat to escape, like extra lanes on a highway.

Fan Speed (RPM) & Airflow (CFM)

RPM is how fast the fan spins, and CFM (Cubic Feet per Minute) is how much air it moves. Higher numbers mean more air moving over the heatsink, which equals better cooling, but often more noise. This cooler's 1850RPM and 88.89CFM are quite high.

Operating Noise (dB(A))

This tells you how loud the fan gets. Lower numbers are quieter. ≤25.6DB(A) is pretty quiet for a powerful cooler, like a soft whisper.

Height (162mm)

This is super important! It's the total height from your CPU to the top of the cooler. If your case doesn't have at least 162mm of clearance, this cooler won't fit inside.

Alternatives

If this cooler is too tall, look for models with a height under 155mm. If you need more cooling for extreme overclocking, search for coolers with 7 or more heat pipes, or consider 240mm/360mm AIO liquid coolers.

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